[INFO] fetching crate blockchain_contracts 0.3.2...
[INFO] documenting blockchain_contracts-0.3.2 against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] extracting crate blockchain_contracts 0.3.2 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate blockchain_contracts 0.3.2 on toolchain beta-2020-08-29
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate blockchain_contracts 0.3.2
[INFO] finished tweaking crates.io crate blockchain_contracts 0.3.2
[INFO] tweaked toml for crates.io crate blockchain_contracts 0.3.2 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate blockchain_contracts 0.3.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded impl-rlp v0.2.1
[INFO] [stderr]   Downloaded primitive-types v0.6.2
[INFO] [stderr]   Downloaded rlp v0.4.5
[INFO] [stderr]   Downloaded fixed-hash v0.5.2
[INFO] [stderr]   Downloaded ethereum-types v0.8.0
[INFO] [stderr]   Downloaded bitvec v0.15.2
[INFO] [stderr]   Downloaded jsonrpc-core v14.0.5
[INFO] [stderr]   Downloaded bitcoin v0.23.0
[INFO] [stderr]   Downloaded primitive-types v0.5.1
[INFO] [stderr]   Downloaded parity-scale-codec v1.2.0
[INFO] [stderr]   Downloaded bech32 v0.7.2
[INFO] [stderr]   Downloaded secp256k1 v0.17.2
[INFO] [stderr]   Downloaded impl-serde v0.3.0
[INFO] [stderr]   Downloaded secp256k1-sys v0.1.2
[INFO] [stderr]   Downloaded ethbloom v0.8.1
[INFO] [stderr]   Downloaded fixed-hash v0.4.0
[INFO] [stderr]   Downloaded tiny-keccak v2.0.1
[INFO] [stderr]   Downloaded ethabi v9.0.1
[INFO] [stderr]   Downloaded web3 v0.10.0
[INFO] [stderr]   Downloaded testcontainers v0.8.1
[INFO] [stderr]   Downloaded spectral v0.6.0
[INFO] [stderr]   Downloaded bitcoin_hashes v0.7.4
[INFO] [stderr]   Downloaded uint v0.8.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-08-29" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e394b649086ed4a8034cae94a848e464345398acca7d394bc02bf48b03455c42
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "e394b649086ed4a8034cae94a848e464345398acca7d394bc02bf48b03455c42", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e394b649086ed4a8034cae94a848e464345398acca7d394bc02bf48b03455c42", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e394b649086ed4a8034cae94a848e464345398acca7d394bc02bf48b03455c42", kill_on_drop: false }`
[INFO] [stdout] e394b649086ed4a8034cae94a848e464345398acca7d394bc02bf48b03455c42
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-08-29" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] c67011b7eabb8b80ba88b05324ab475334e89687f8c056ee5ab00b66ef51624a
[INFO] running `Command { std: "docker" "start" "-a" "c67011b7eabb8b80ba88b05324ab475334e89687f8c056ee5ab00b66ef51624a", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.9
[INFO] [stderr]    Compiling syn v1.0.16
[INFO] [stderr]    Compiling serde v1.0.105
[INFO] [stderr]    Compiling cc v1.0.41
[INFO] [stderr]    Compiling ryu v1.0.3
[INFO] [stderr]    Compiling crunchy v0.2.2
[INFO] [stderr]    Compiling tiny-keccak v2.0.1
[INFO] [stderr]     Checking bech32 v0.7.2
[INFO] [stderr]     Checking itoa v0.4.5
[INFO] [stderr]     Checking hex v0.3.2
[INFO] [stderr]     Checking regex-syntax v0.6.17
[INFO] [stderr]     Checking itertools v0.8.2
[INFO] [stderr]    Compiling secp256k1-sys v0.1.2
[INFO] [stderr]    Compiling quote v1.0.3
[INFO] [stderr]     Checking regex v1.3.5
[INFO] [stderr]    Compiling serde_derive v1.0.105
[INFO] [stderr]    Compiling proc-macro-hack v0.5.12
[INFO] [stderr]    Compiling hex-literal-impl v0.2.1
[INFO] [stderr]     Checking hex-literal v0.2.1
[INFO] [stderr]     Checking bitcoin_hashes v0.7.4
[INFO] [stderr]     Checking secp256k1 v0.17.2
[INFO] [stderr]     Checking serde_json v1.0.48
[INFO] [stderr]     Checking bitcoin v0.23.0
[INFO] [stderr]     Checking blockchain_contracts v0.3.2 (/opt/rustwide/workdir)
[INFO] [stderr]  Documenting blockchain_contracts v0.3.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 17s
[INFO] running `Command { std: "docker" "inspect" "c67011b7eabb8b80ba88b05324ab475334e89687f8c056ee5ab00b66ef51624a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c67011b7eabb8b80ba88b05324ab475334e89687f8c056ee5ab00b66ef51624a", kill_on_drop: false }`
[INFO] [stdout] c67011b7eabb8b80ba88b05324ab475334e89687f8c056ee5ab00b66ef51624a